During which period of pregnancy is the developing fetus most susceptible to teratogenic effects?
Question
During which period of pregnancy is the developing fetus most susceptible to teratogenic effects?
Solution
The developing fetus is most susceptible to teratogenic effects during the first trimester of pregnancy. This is because it is during this period that the major organ systems are forming, a process known as organogenesis. Any disruption in this process can lead to major birth defects. However, it's important to note that the fetus is still susceptible to some teratogenic effects throughout the entire pregnancy. For example, the central nervous system continues to develop throughout pregnancy and can be affected by teratogens at any time.
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